// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "base/process/memory.h"
#include "base/debug/alias.h"
#include "base/logging.h"
#include "build/build_config.h"

namespace base {

namespace {

    // Breakpad server classifies base::`anonymous namespace'::OnNoMemory as
    // out-of-memory crash.
    NOINLINE void OnNoMemory(size_t size)
    {
        size_t tmp_size = size;
        base::debug::Alias(&tmp_size);
        LOG(FATAL) << "Out of memory. size=" << tmp_size;
    }

} // namespace

void TerminateBecauseOutOfMemory(size_t size)
{
    OnNoMemory(size);
}

// Defined in memory_mac.mm for Mac.
#if !defined(OS_MACOSX)

bool UncheckedCalloc(size_t num_items, size_t size, void** result)
{
    const size_t alloc_size = num_items * size;

    // Overflow check
    if (size && ((alloc_size / size) != num_items)) {
        *result = NULL;
        return false;
    }

    if (!UncheckedMalloc(alloc_size, result))
        return false;

    memset(*result, 0, alloc_size);
    return true;
}

#endif

} // namespace base
